Load Specifications
Load data in caliber .308 Marlin Express with .308 | 150gr | Alaska Bullet Works Kodiak SP SPBC bullet and 43 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Alliant AR-Comp and Lovex D073.6.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 42,047 psi | 88% | 2507 fps | 99.7% |
| Accurate 2460 | <<locked>> | 88% | 40,393 psi | 84% | 2500 fps | 97.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,003 psi | 88% | 2579 fps | 99.8% |
| Accurate 2520 | <<locked>> | 94% | 43,149 psi | 90% | 2589 fps | 97.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,044 psi | 82% | 2546 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 84% | 42,757 psi | 89% | 2438 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 84% | 43,178 psi | 90% | 2441 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 82% | 42,554 psi | 89% | 2480 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 43,033 psi | 90% | 2566 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 94% | 41,336 psi | 86% | 2579 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 42,786 psi | 89% | 2533 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 40,886 psi | 85% | 2425 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 90% | 41,916 psi | 88% | 2474 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 94% | 41,046 psi | 86% | 2569 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 88% | 41,669 psi | 87% | 2543 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 88% | 42,424 psi | 89% | 2559 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,634 psi | 68% | 1588 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 42,061 psi | 88% | 2612 fps | 99.4% |
| IMR 4198 | <<locked>> | 86% | 42,177 psi | 88% | 2477 fps | 100% |
| Lovex D073.4 | <<locked>> | 82% | 40,727 psi | 85% | 2507 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 90% | 43,236 psi | 90% | 2549 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 96% | 40,828 psi | 85% | 2559 fps | 97.1% |
| Lovex S062ᴾ | <<locked>> | 100% | 43,105 psi | 90% | 2562 fps | 95.7% |
| Norma 200 | <<locked>> | 84% | 42,946 psi | 90% | 2513 fps | 100% |
| Norma 202 | <<locked>> | 96% | 42,627 psi | 89% | 2562 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,372 psi | 68% | 1621 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 41,336 psi | 86% | 2513 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 92% | 41,771 psi | 87% | 2510 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 82% | 40,727 psi | 85% | 2507 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 96% | 40,828 psi | 85% | 2559 fps | 97.1% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 43,105 psi | 90% | 2562 fps | 95.7% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 40,451 psi | 85% | 2513 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 40,886 psi | 85% | 2490 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 40,756 psi | 85% | 2438 fps | 97.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,858 psi | 87% | 2474 fps | 98.6% |
| Somchem S335 | <<locked>> | 94% | 41,974 psi | 88% | 2484 fps | 98.6% |
| Vihtavuori N120 | <<locked>> | 82% | 42,699 psi | 89% | 2441 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 40,973 psi | 86% | 2448 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 94% | 42,844 psi | 90% | 2490 fps | 99.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,236 psi | 90% | 2582 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 98% | 42,931 psi | 90% | 2546 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 98% | 41,379 psi | 86% | 2533 fps | 97.6% |
| Winchester 748 | <<locked>> | 94% | 42,366 psi | 89% | 2589 fps | 96.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 28,964 psi | 61% | 2234 fps | 96.9% |
| Accurate 2460 | <<locked>> | 82% | 33,127 psi | 69% | 2349 fps | 95.1% |
| Accurate 2495 | <<locked>> | 84% | 24,671 psi | 52% | 2198 fps | 95.7% |
| Accurate 2520 | <<locked>> | 88% | 35,230 psi | 74% | 2438 fps | 95.4% |
| Accurate 4064 | <<locked>> | 92% | 30,153 psi | 63% | 2352 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 37,710 psi | 79% | 2343 fps | 98% |
| Accurate LT-32 | <<locked>> | 80% | 38,087 psi | 80% | 2346 fps | 96.1% |
| ADI AR 2207 | <<locked>> | 80% | 39,871 psi | 83% | 2438 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,230 psi | 74% | 2411 fps | 97.2% |
| Alliant AR-Comp | 31.2 gr | 80% | 26,716 psi | 56% | 2251 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,533 psi | 70% | 2352 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,013 psi | 75% | 2333 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 39,494 psi | 83% | 2428 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 92% | 38,580 psi | 81% | 2520 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 32,271 psi | 67% | 2343 fps | 96.2% |
| Hodgdon H335 | <<locked>> | 80% | 32,329 psi | 68% | 2349 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,120 psi | 50% | 1421 fps | 100% |
| IMR 3031 | 32.7 gr | 84% | 28,848 psi | 60% | 2313 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 35,288 psi | 74% | 2346 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 80% | 37,855 psi | 79% | 2451 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 86% | 37,739 psi | 79% | 2448 fps | 95.2% |
| Lovex D073.6 | 38.2 gr | 92% | 35,810 psi | 75% | 2464 fps | 95.6% |
| Lovex S062 | <<locked>> | 98% | 40,466 psi | 85% | 2513 fps | 95% |
| Norma 200 | <<locked>> | 80% | 37,811 psi | 79% | 2421 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 33,286 psi | 70% | 2375 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,018 psi | 50% | 1453 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 36,477 psi | 76% | 2415 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 84% | 32,938 psi | 69% | 2326 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 37,855 psi | 79% | 2451 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 35,810 psi | 75% | 2464 fps | 95.6% |
| Shooters World Precision | <<locked>> | 98% | 40,466 psi | 85% | 2513 fps | 95% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,447 psi | 74% | 2411 fps | 96.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,127 psi | 71% | 2356 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 33,837 psi | 71% | 2300 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 30,980 psi | 65% | 2254 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 31,111 psi | 65% | 2260 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 39,958 psi | 83% | 2398 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,300 psi | 67% | 2274 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 80% | 28,079 psi | 59% | 2182 fps | 96.3% |
| Vihtavuori N135 | <<locked>> | 82% | 24,685 psi | 52% | 2169 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 88% | 31,676 psi | 66% | 2316 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 92% | 34,432 psi | 72% | 2395 fps | 95.6% |
| Winchester 748 | <<locked>> | 92% | 39,842 psi | 83% | 2539 fps | 95.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 43 powders for .308 Marlin Express loaded with the .308 | 150gr | Alaska Bullet Works Kodiak SP SPBC. IMR 3031 delivers the highest muzzle velocity at 2,612 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,612 fps. Accurate 2495 gives the best case fill at 100 %, and 43 of the 43 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon TrailBoss reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. IMR 3031, Alliant AR-Comp, Lovex D073.6 rank at the top here: for .308 Marlin Express with the .308 | 150gr | Alaska Bullet Works Kodiak SP SPBC they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.